Maxitrol 12A06 Orifice

The Maxitrol 12A06 is a professional-grade 1/8" NPT vent limiting fixed orifice designed to manage gas escapement in the event of a diaphragm rupture. This critical safety component is engineered for indoor gas regulator installations, eliminating the need for expensive and labor-intensive vent piping to the outdoors by meeting ANSI Z21.80/CSA 6.22 standards. When installed in an upright horizontal position, the 12A06 vent limiter utilizes an internal ball check mechanism to effectively restrict the release of natural gas or LP propane into the atmosphere, ensuring compliance with local fuel gas codes. This brass-constructed orifice is specifically calibrated for compatibility with Maxitrol RV48, RV52, RV53, RV61, and the R400, R500, and R600 series (including 'S' models) regulators. Its fixed-hole design provides consistent gas flow control and atmospheric breathing for the regulator’s upper chamber, maintaining precise pressure regulation without the risk of blockages typical of makeshift venting solutions.

• Code Compliance: Meets strict ANSI standards for indoor regulator venting without the need for external vent lines.
• Precise Gas Escapement Control: Limits gas release to within certified safety parameters during a primary diaphragm failure.
• Wide Compatibility: Direct fit for Maxitrol RV and R series regulators with 1/8" NPT vent ports.
• Durable Brass Construction: Resists corrosion and mechanical wear in demanding HVACR environments.
• Streamlined Installation: Compact fixed orifice design facilitates quick mounting directly into the regulator stack.

Can the Maxitrol 12A06 be used for outdoor installations?
No, vent limiting devices like the 12A06 are strictly for indoor use and must be protected from environmental factors like rain, snow, or insects that could block the vent port.

Is this orifice compatible with propane (LP) systems?
Yes, the 12A06 is rated for use with both natural gas and liquefied petroleum (LP) gas mixtures when paired with its certified regulator series.

Does this part require a specific mounting orientation?
For the vent limiter to function correctly as a safety device, the regulator must be installed in an upright horizontal position. Any other orientation may cause the internal ball check to close prematurely.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.